EB Adventure Photography/Shutterstock Save for later Print Download Share LinkedIn Twitter Production of liquid hydrocarbons by countries not aligned to Opec-plus, including refinery gains, amounted to 49 million barrels per day in May, according to Energy Intelligence’s preliminary assessment, flat compared to April. Crude oil output was estimated to have fallen by over 500,000 b/d to 32.6 million b/d as a result of epic forest fires in Canada and worker strikes in Brazil.